1272215 has 16 divisors (see below), whose sum is σ = 1763328. Its totient is φ = 863136.

The previous prime is 1272211. The next prime is 1272223. The reversal of 1272215 is 5122721.

It is a cyclic number.

It is not a de Polignac number, because 1272215 - 2² = 1272211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5594 + ... + 5816.

It is an arithmetic number, because the mean of its divisors is an integer number (110208).

2^1272215 is an apocalyptic number.

1272215 is a deficient number, since it is larger than the sum of its proper divisors (491113).

1272215 is a wasteful number, since it uses less digits than its factorization.

1272215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398.

The product of its digits is 280, while the sum is 20.

The square root of 1272215 is about 1127.9250861649. The cubic root of 1272215 is about 108.3561345826.

Adding to 1272215 its reverse (5122721), we get a palindrome (6394936).

It can be divided in two parts, 12 and 72215, that added together give a palindrome (72227).

The spelling of 1272215 in words is "one million, two hundred seventy-two thousand, two hundred fifteen".